refactor: refactor code structure and improve demo page (#4389)

* feat: captcha example

* fix: fix lint errors

* chore: event handling and methods

* chore: add accessibility features ARIA labels and roles

* refactor: refactor code structure and improve captcha demo page

* feat: add captcha internationalization

* chore: 适配时间戳国际化展示

---------

Co-authored-by: vince <vince292007@gmail.com>

packages/effects/common-ui/src/components/captcha/captcha-card.vue

@@ -0,0 +1,77 @@
+<script setup lang="ts">
+import type { CaptchaCardProps } from './types';
+
+import { computed } from 'vue';
+
+import { $t } from '@vben/locales';
+import {
+  Card,
+  CardContent,
+  CardFooter,
+  CardHeader,
+  CardTitle,
+} from '@vben-core/shadcn-ui';
+
+import { parseValue } from './utils';
+
+const props = withDefaults(defineProps<CaptchaCardProps>(), {
+  height: '220px',
+  paddingX: '12px',
+  paddingY: '16px',
+  title: '',
+  width: '300px',
+});
+
+const emit = defineEmits<{
+  click: [MouseEvent];
+}>();
+
+const rootStyles = computed(() => ({
+  padding: `${parseValue(props.paddingY)}px ${parseValue(props.paddingX)}px`,
+  width: `${parseValue(props.width) + parseValue(props.paddingX) * 2}px`,
+}));
+
+const captchaStyles = computed(() => {
+  return {
+    height: `${parseValue(props.height)}px`,
+    width: `${parseValue(props.width)}px`,
+  };
+});
+
+function handleClick(e: MouseEvent) {
+  emit('click', e);
+}
+</script>
+<template>
+  <Card :style="rootStyles" aria-labelledby="captcha-title" role="region">
+    <CardHeader class="p-0">
+      <CardTitle id="captcha-title" class="flex items-center justify-between">
+        <template v-if="$slots.title">
+          <slot name="title">{{ $t('captcha.title') }}</slot>
+        </template>
+        <template v-else>
+          <span>{{ title }}</span>
+        </template>
+        <div class="flex items-center justify-end">
+          <slot name="extra"></slot>
+        </div>
+      </CardTitle>
+    </CardHeader>
+    <CardContent class="relative mt-2 flex w-full overflow-hidden rounded p-0">
+      <img
+        v-show="captchaImage"
+        :alt="$t('captcha.alt')"
+        :src="captchaImage"
+        :style="captchaStyles"
+        class="relative z-10"
+        @click="handleClick"
+      />
+      <div class="absolute inset-0">
+        <slot></slot>
+      </div>
+    </CardContent>
+    <CardFooter class="mt-2 flex justify-between p-0">
+      <slot name="footer"></slot>
+    </CardFooter>
+  </Card>
+</template>